Word parts gun + -er Pronunciation (US) IPA (key): /ˈɡʌn.ɚ/ (UK) IPA (key): /ˈɡʌn.ə(r)/ Audio (AU)(file) Noun Singular gunner Plural gunners (countable) (military) A gunner is an artillery soldier, especially one who holds private rank. (countable) A gunner is an person who operates a gun. Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads